I bought three of the 32 inch posts to create a floor to ceiling climbing wall for my two cats who love to climb.  Make sure you have a power drill and put them into wall studs. You'll need screws too. None come with the posts. I'd recommend a 2" #8 or #10.
The gray ends twist off to reveal the wall mount. There are no instructions but it's pretty straight forward. They took me about an hour to put up.
Quality is very good. Came boxed and bubble wrapped, in perfect condition. 
I moved their condo over to it so they had places to jump to that were carpeted and grippy. I plan on adding carpeted shelves to the walls beside the post so I can put their condo back at the patio doors ;-)